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1、. .列竖式计算2.140.9=0.750.38=32.25=1.57+3.43=18.549.9=3699=3.240.24=22.83=5.980.23=19.765.2=3.817=3242=246.413=2.170.7=5.3+6.7=0.250.046=0.3961.2=0.7560.36=15.613=0.1815=0.02514=3.0636=3.842.6= 5.763 7.1522=90.753.3=3.680.2=16.90.13=1.553.9=3.70.016=13.760.8= 8.8 9.5= 8.41.3=6.40.5=4.480.4=0.0420.54=0.7
2、60.32=2.523.4=1.0825=4.80.25 10.13.3=10.7512.5=3.259.04=12.58.8=0.430.28=6.450.73=3.080.43=1.526.7=5.2229=5.980.23=19.765.2=18.723.6= 62.42.6= 0.5440.16= 1.441.8= 11.72.6= 19.412= 5.980.23= 19.765.2= 10.84.5=211.4= 8.841.7= 6.210.03= 1.890.54= 0.510.22= 7.12.5= 1.9980.54= 1.280.16= 2.10.4= 2.563.2=
3、50.1838.6= 4.687.5= 14.70.07= 5.40.15= 124.80.24= 23.45.85= 25.26= 34.5 15= 1.812= 2415=1.812= 6.314= 7215= 14.217= 1.2618= 43.529= 18.927= 1.3515= 28.611= 20.424= 3.6452= 15.612= 32816= 1.3527= 7.650.85= 12.60.28= 35.44.2= 0.0420.54= 0.760.32= 5.2229= 18.723.6=0.250.046= 2.523.4= 1.0825=4.670.9=52.
4、44=1.6666.1=9.4320.002=5.66.5=4.882.9=5.614.3=8.92.4=5.555=9.770.02=1.3845.1=8.7883=2.661=0.0590.2=4.2681.7=575.7=9.462.85=17.86.4=1.54.9=2.50.88=2.3462.3 =脱式计算能简便的就简便运算10-1.8-7.22.541263+124+7627456732.54122.50.70.80.125727.691013.810.15.42.51.42.51.250.32126.23.81.7+0.43+3.375254250250570+5050+701
5、3.7+0.98+0.02+4.39.51018.717.4-8.77.412.50.42.5818.63.470.5372101722352835282.678+787.47.26-(5.26-1.5) 8(2.50.25) 1.250.80.5 1.50.25)40.120.50.167.2899+7.284.3500.210245-3283.85.25+14.5=300-4263210.810.25+5.964031327(25+4)4 1.2+ 1.8)4.5102576832645-451210-2.87-7.130.96+9.69.940119+284640+128451.2581
6、.255.370+4.632.57.147.2899+7.284.3500.2(1.250.125)84.8100.156.59956.54.85+0.351.4三.解方程53-x2=8 0.273x=0.351.8x=0.972x0.756=909x-40=5 x5+9=2148-27+5x=3110.5+x+21=56x+2x+18=78 (200-x)5=30(x-140)70=4(27.5-3.5)x=40.1(x+6)=3.30.44(x-5.6)=1.6 7(6.5+x)=87.5 1.2x=81.6 x+5.6=9.4 x-0.7x=3.6 91x 1.380x-90=70 78
7、x+2x=160 88-x=809-4x=17x-8=6 65x+35=10019x+x=4025-5x=15 56x-50x=30 78 -5x=2832x-29=3 28+6X=88 32-22X=10 24-3X=33X+5X=48 14X-8X=12 9x=4.5 73.2x=52.5 87x=22 66x=32.3 77x=21.9 99x=61.9 56x=5 39x=315(x+0.5)=1.5 12x+8x=40 12x8x=40 3X+5X=48 14X-8X=12 (x-2)3=7x5+9=21(200-x)5=30 48-27+5x=313x816 3x+9=27 5.3
8、+7x=7.4 3x5=4.8 2.4X=26.4 7.5x3x=18 51.3-2x=5.5 24x+6x=63.640.50.810.18=4.8(15 2.4)=6.81+6.8199=0.2518540=2.5(3.80.04)=0.2539+0.25=(85.27)1.25=6.81+6.8199=0.2518540=6.80.750.5=3.750.1252.75=1.53+23.47.2=1.2+3.2+0.8 =1.22.54 =3.01+1.7+0.99 =0.7899+0.78=8.717.4-8.77.4=12.50.42.58=4.40.83.40.8=(9.37+9.
9、37+9.37+9.37)2.5=2.376.3+2.373.7=2615.715.724=460.33+540.33=1.93+2.7+2.07+7.3=3.375+5.75+2.25+6.625=2.14.3+5.72.1=3.3750.97+0.976.625=6.54+2.4+3.46+0.6=95.61.8+95.68.2=1.54.20.750.25=3.274 +3.275.7=0.25800.450.9=2.4+2.4(5.375-3.375)=7.5-5.713=12.37-3.25-6.75=166.8+2.216+16=58.7-16.653.7=0.44.72.5+(2
10、.3+5.3)=9.31-1.125-7.875=3.120.90.70.1=9.2+9.7283.21.5=2.40.751.252.5= 20.20.62.120.1=(1.50.9+3.65)2.5=8.480.80.9=1010.3614.40.05=(25.3-9.7)0.38.5=10.5(5.14.4)+18.25=4.110.72(3.382.13=102511254.53.6= 6.85.42.750.9=0.87536+4.058.1= 227254.680.5=6302.986.50.08=(21.88+29.8) 7.6=(8.15.4)3.685.7=(3.44+20
11、.50.32)0.16=0.54(8.745.3)28.4=0.11+10.80.1=1.256.414.882.4=(4.32.012.2)4=58.80.60.70.02=10.47.790.350.6=3.61.20.55=13.70.253.74=3.61.25+ 0.320.4=0.8(3.22.992.3)=2.5(69.7283.2)=5.2(4.60.920.04)=5.4(3.940.86)0.8=19.281.820.7=10.563.753.750.56=(1.5 0.81)0.4=37.62+20.760.042= 17.2-4.53.60.32=(6.02 + 2.8
12、 )0.4 - 2.05=3.2780.5-9.840.16(71.271.20.9)0.25=1.083.94+34.30.24.25-4.250.81.7=1.465+12.80.47.5=1.521.655.7=3.824250.6=(0.25 +0.1250.750.4)=202.548=(4.84.80.5)2=0.810.40.640.92=(25.3-9.7)0.37.6= 4.5+1.361.5=58.80.60.70.02=0.4(3.2-0.8)1.2=16.78-1.61.50.8=(53.73-17.49)(2.6+12.4)=18.644.35220.9=808.21
13、07.6=(98.5)(54.76)0.1=1.68.41.50.18=1.1-0.782.7-1.95= 20.20.62.80.4=0.06(10.140.64)2=17.685.2+2.71.5=19.8+(3.749-0.299)2.3=8.6+15.40.41.4=1.51.20.62.4=0.66.252.50.25=4.3215125.10.85=5.6(12.58.5 0.85)=8.74 - 8.7423+7000.03=0.38+9.623.75.4=4.3836.94+34.30.2= 5.84-3.90.4+0.15=1.6(2.25+27.751.5)=2.021.0270.26=6.5(10-3.7)+2.98= 4.75+8.4(9.2-6.8)=4.5(0.75-0.356)+9.23=5.4+(0.63+1.290.23)=1.465+12.80.47.5=2.986.53.23.12=. .word.